.rules-page .rules-layout {
    display: grid;
    grid-template-columns: minmax(0, 2fr) minmax(340px, 1fr);
    gap: 24px;
    align-items: start;
}

.rules-page .panel {
    height: 100%;
}

.editor-panel h2,
.preview-panel h2 {
    margin-bottom: 14px;
}

.meta-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    margin-bottom: 18px;
}

.meta-grid label {
    display: flex;
    flex-direction: column;
    gap: 8px;
    font-weight: 600;
}

.meta-grid span {
    font-size: 0.85rem;
    color: var(--gray-color);
}

.meta-grid input {
    padding: 12px;
    border: 2px solid var(--light-color);
    border-radius: var(--border-radius);
    font-size: 0.95rem;
}

.meta-grid input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2);
}

.meta-wide {
    grid-column: 1 / -1;
}

.table-toolbar {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 16px;
}

.rules-table-wrap {
    overflow-x: auto;
}

.rules-table {
    width: 100%;
    border-collapse: collapse;
}

.rules-table th {
    background: var(--dark-color);
    color: white;
    text-align: left;
    padding: 12px;
    font-weight: 600;
}

.rules-table td {
    padding: 10px;
    border-bottom: 1px solid var(--light-color);
}

.rules-table tr:hover,
.rules-table tr.row-highlight {
    background: rgba(52, 152, 219, 0.08);
}

.rule-field {
    width: 100%;
    min-width: 84px;
    padding: 10px;
    border: 2px solid var(--light-color);
    border-radius: 6px;
    font-size: 0.95rem;
}

.rule-field:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.18);
}

.status-message {
    margin-top: 16px;
    padding: 12px 14px;
    background: var(--light-color);
    border-radius: var(--border-radius);
}

.summary-card {
    display: grid;
    gap: 12px;
    margin-bottom: 16px;
}

.summary-label {
    display: block;
    margin-bottom: 4px;
    color: var(--gray-color);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.summary-value {
    display: block;
    font-weight: 600;
    word-break: break-word;
}

.json-preview {
    margin: 0;
    min-height: 320px;
    max-height: 520px;
    overflow: auto;
    padding: 16px;
    border-radius: var(--border-radius);
    background: #1e1e1e;
    color: #e6e6e6;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    line-height: 1.6;
    white-space: pre-wrap;
    word-break: break-word;
}

.json-key {
    color: #9cdcfe;
}

.json-string {
    color: #ce9178;
}

.json-number {
    color: #b5cea8;
}

.json-boolean {
    color: #569cd6;
}

.json-null {
    color: #569cd6;
}

.json-punctuation {
    color: #d4d4d4;
}

@media (max-width: 1024px) {
    .rules-page .rules-layout {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 720px) {
    .meta-grid {
        grid-template-columns: 1fr;
    }

    .table-toolbar {
        flex-direction: column;
    }

    .table-toolbar .btn {
        width: 100%;
    }
}